252173126 has 8 divisors (see below), whose sum is σ = 383905560. Its totient is φ = 124204608.

The previous prime is 252173123. The next prime is 252173137. The reversal of 252173126 is 621371252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×252173126² = 127182570953223752, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252173123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940811 + ... + 941078.

It is an arithmetic number, because the mean of its divisors is an integer number (47988195).

Almost surely, 2^252173126 is an apocalyptic number.

252173126 is a deficient number, since it is larger than the sum of its proper divisors (131732434).

252173126 is a wasteful number, since it uses less digits than its factorization.

252173126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881958.

The product of its digits is 5040, while the sum is 29.

The square root of 252173126 is about 15879.9598865992. The cubic root of 252173126 is about 631.7805729597.

The spelling of 252173126 in words is "two hundred fifty-two million, one hundred seventy-three thousand, one hundred twenty-six".